#include "stdio.h"
/*
int main()
{
    printf ("The size of is short %d bytes\n",sizeof (short));
    printf ("The size of is int %d bytes\n",sizeof (int));
    printf ("The size of is long %d bytes\n",sizeof (long));
    printf ("The size of is long long %d bytes\n",sizeof (long long));
    return 0;
}
int main ()
{
     int m;
     int i;
           scanf ("%d",&m);
         for (i = 0;i < 4; i++) 
            {
              printf ("%d",m%10);
                 m /= 10;
            }

}
int main() 
{
    int ch = 0; 
    while((ch = getchar( )) != EOF)
         {
           putchar (ch + 32);
           printf ("\n");
           getchar();
         }
    
    return 0; 
}
int main() 
{
    char ch = 0;
    ch = getchar();
    int i,j;
for (i = 0;i < 5; i++)
    {
        for (j = 0;j < 4 - i; j++)
            {
              printf (" ");   
            }
            for (j = 0;j <= i; j++)
                {
                    printf ("%c ",ch);
                }
                printf ("\n");
    }

    return 0;
}
 int main() 
{
    int i;
   char arr[] = {73,32,99,97,110,32,100,111,32,105,116,33};
      int sz = sizeof (arr) / sizeof (arr[0]);
      for (i = 0;i < sz; i++)
      {
        printf ("%c",arr[i]);
      }
    return 0;
}
int main() {
int year = 0;
int month = 0;
int date = 0;
    scanf ("%4d%2d%2d",&year,&month,&date);
          printf ("year=%4d\n",year);
          printf ("month=%02d\n",month);
          printf ("date=%02d",date);
    return 0;
}
int main() {
     int n = 0;
     while (scanf ("%d",&n) != EOF)
          {
           printf ("%d",1<<n);
          }
    return 0;
}*/